Punching machine



1956 w. E. CARROLL ETAL 2,771,009

PUNCHING MACHINE 4 Sheets-Sheet 1 Filed June 3, 1952 I Inventor:

19472119 5 5. CfikRo/J. rm/5 7 1-50155 bgm d d Abbey-flags,

Nov. 20, 1956 w. E. CARROLL ETAL 2,771,009

PUNCHING MACHINE 4 Sheets-Shet 2 Filed June 3, 1952 lnve ntor-z u, 0 sMW A 0 n a M r t M L g A "2% MN WM 2 b Nov. 20, 1956 w. E. CARROLL EIALPUNCHING MACHINE Filed June 5; 1952 4 Sheets-Sheet 4 Inventor- 1/911 in!E. cwk kolt MES M. aaLiS United States PatentO PUNCHING MACHINEApplication June 3, 1952, Serial No. 291,444

15 Claims. (Cl. 93'---1) i This invention relates to improvements inpaper punching machines, or the like. More particularly, it has to ice 1l 2 ered in threaded alignment in the machine; in which the tapeadvancing means comprises a movable jaw to grip the tape therein tounwind it from the roll and advance it to be severed; in which the endsprovide a tape holddown jaw to maintain the tape in position duringseverance and until the movable jaw returns to initial tape grippingposition; in which there is a tape wiper or separator member adapted toremove the tape from the hold-down jaw when the same adheres thereto; inwhich there is a rec'iprocable carriage with a jaw mounted thereon to mi7 rocate therewith and to grip the tape therebetween to unwind it fromthe roll and to advance a portion to be do with such a machinecomprising means for feeding a web of adhesive tape to the marginal edgeof a sheet of paper, and, simultaneously therewith, severing the tapetransversely of the web substantially flush with the edge of the sheet,punching coinciding holes through the tape portion being severed, andthrough the sheet, and adhesively securing the severed portion to thesheet to reinforce the latter around its punched portion; and theprovision of such a machine is the principal object of the invention.

Several types of machines, or other devices, for punch ing one or moreholes along marginal edges of sheets 'of paper, so that the sheetsreadily can be fastened in a ring or other type of binder, have beenavailable on the market for along time. In order to reinforce themarginal edges around such holes it has also been customary separatelyto purchase, and manually to apply, circular re-.

inforcing elements, or grommets, by first wetting the adhesive thereon,and then individually sticking them inposition, often after somedifiiculty in properly matching and tape advancing means; and in whichthe punching and compression means comprises a floating plate having anaperture therein, a fixed punching member adapted to penetrate the baseand a reciprocable compression memher also having an aperture thereinaligned with the base aperture and also adapted to be penetrated by thefixed punching member. I

'It is also an object of the invention-to provide a shee of, paperhaving a hole or holes, punched therein adjacent one of its marginaledges, a transparent reinforcing suming and often lacking in accuracyand neatness,but

also is expensive because of the extra cost of the specially madegrommets. I

There has been a long felt want in the industry for a device, ormachine, which would overcome the foregoing difficulties anddisadvantages, and a solution to the prob: lem now has been accomplishedby means of the present invention.

It is, therefore, another object of the invention gen-j erally toprovide such a machine which will perform such operations that iseconomic of manufacture as well as in' operation, sturdy, durable andpositive in function and which will operate with relative freedom fromwear and tear, and other mechanical difiiculties. f

' More specifically, it is an object of the invention to provide such amachine having means for mounting a rolled web of adhesive tape, meansto advance the tape a predetermined distance, severing means to severthe end porobvious hereinafter set forth and the scope of theapplication of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the inventionreference should be had to the following detailed description taken inconnection with the accompanying drawings, in which:

Fig. 1 is an exploded perspective view illustrating certain structures,in part, of theinternal mechanism 'of 'a preferred embodiment of myinvention;

Fig. 2 is a side elevational view of the machine, with parts thereofbroken away;

tion of the tape, punching and compression means to receive a sheet ofpaper and the predeterminedend portion of the tape in overlying relationin order to punch holes through both and to compress the sheet and cutportion of the tape adhesively together, and means adapted to actuatethe tape advancing means, and the severing, punching and compressionmeans in order substantially simultaneously to sever the tape portion,punch the same, together with the paper, and adhesively to secure themto each other. 1

Other specific objects of the invention are to provide such a device inwhich the means for mounting the rolled web of tape comprises a welladapted loosely to receive and hold the same in freely rotatableposition to be unwound, with guide means to :maintain the roll in theWell and an unwound portion of the web to be sev- Fig. 3 is a plan viewof Fig. 2 with a portion thereof removed;

1 Fig. 4 is a front elevational view of Figs. 2 and 3-with a portionthereof broken away;

Fig. 5 is a vertical transverse sectional view taken along the lines 55of Fig. 2;

Fig. 6 is a side elevational view, partly in section and with partsbroken away, illustrating the mechanism for the initial step ofadvancing the tape into position to be severed;

Figs. 7 and 8 are views similar to Fig. 6 illustrating the simultaneousaction of severing a pre-determined portion of the tape, punching thetape and paper, and compressively and adhesively securing them together;

Fig. 9 is a view similar to Figs. 6, 7 and 8 illustrating the returnmovement of the mechanism preparatory to a portion of the severing andpunching mechanism; and

repeating the operation;

Fig. 10 is a perspective view of a tape advancing'jaw; Fig. 11 is aperspective view, somewhat enlarged, of

Fig. 12 is a plan view of a sheet of paper illustrating a plurality ofreinforcing grommets along one marginal edge thereof secured to theunderside of the paper with a hole punched through each grommet andthrough .th overlying portion of the sheet.

Referring now more particularly to the drawings there is indicatedgenerally at 20 (Fig. 2) a well, provided by the rearwardly extendingportion 21 of a base 22, and a rear housing 23 hingedly connected at 24to the main housing 25. This well is adapted loosely to receive thereinand to hold a roll of tape 26, preferably a roll of adhesively coatedCellophane tape, in a more or less freely rotatable and floatingposition to be unwound. That is, the roll is not pivotally mounted onits axis but peripherally confined by the Well and rear housing. Areciprocating finger plate 27 having upstanding side walls 28 carrying abattle or curved finger plate 29 which overlies the top of the roll. Thebattle 29 and side walls 28 are adapted to maintain the roll 26 andunwound portion 30 of the tape in position as it is threaded through themachine. Therear end of the reciprocating finger plate 27 has downwardlydepending members 31 which limit the reciprocating movement thereof. Itwill be observed (Fig. 1) that the upper surface of the tape containsthe coating of adhesive as shown by the stippling.

The means to advance the tape a pre-determined distance with respect tothe severing means as it is threaded in alignment of the longitudinalaxis of the machine employs the reciprocating finger plate 27 which hasan .extension 30 thereon. This extension 32 is mounted slidably toreciprocate in a gib or groove 33 and flush with the upright portions 34forming the gib or groove on the bed 35 overlying the base 22. Thefinger plate 27 also is slidably mounted on the remaining rearwardlyextending portion 36 of the bed 35.

The extending finger portion 32 is cooperatively associated with amovable jaw 37 (Figs. 1 and The lower forward edge of this jaw isserrated as at 38 in order grippingly to engage the adhesive surface ofthe tape which is disposed between the jaw 37 and the extension finger32. The jaw 37 preferably is bifurcated, for example, by means of twoextension plates 39 preferably welded thereto at its rearward end. Theseplates 39 have holes 40 drilled therethrough for the reception of apivot pin or shaft 41 journaled between the upstanding wills 28 of thereciprocating finger plate 27.

A yoke 42, having depending portion 43 is also provided with a hole toreceive the pin 41 and is pivotally mounted between plates 39 so thatthe yoke overlies the jaw 37. On top of the jaw 37 is secured a cup orsocket member 44 for the reception of a compression spring 45, the topof which spring is seated in a socket 46 in the underside of the yoke.

The yoke 42 has a curved forwardly extending portion 47 which isprovided with an opening 48 therein and which opening is adapted toreceive a pivot pin 49, which pin, when mounted in the opening, extendsan appreciable distance laterally of the sides of the extension portion47 of the yoke 42. Mounted on the extending portions of the pin 49 areright and left eccentrics 50 and 51 having oficenter holes 52 and 53respectively adapted to receive the extending portions of the pin 49.Each eccentric has a central bore 54 therein for the reception of alongitudinally split bushing 55. The split in the bushing is alignedwith a key slot 56 in each eccentric for the reception of a key 57. Amanually actuatable handle 58, having a stud 59, provided with a keyslot 60 is adapted to be fitted into the bushing when the latter ismounted within the eccentrics 50 and 51 in such a manner that the keyslot 60 will also receive the key 57 therein.

The movable jaw 37 is adapted to grip the tape 30 between itself and thefinger 32, as aforesaid, therebetween to unwind the same from the roll26 and to advance it so that a pre-determined portion can be severedwhen the member 58 is rotated, as will more fully be explainedhereinafter.

cooperatively associated with the jaw 37 and finger extension 32, whichwith their connected parts form a reciprocable carriage, are two (rightand left) tape holddown jaws 61 and 62. Each of these hold-down jaws arepivotally mounted at 63 on inner side plates 64 and 65 respectively.These side plates are secured in position by means of suitable. screwspassing through openings 66 to secure the same to the bed 35. Each sideplate 64 and 65 has a large upper opening 67 which is co-axially alignedwith the stud 59 which passes therethrough. When the device isassembled, the stud 59 and handle member 58 are secured in position bymeans of a screw 68 which passes through a washer 69, the screw enteringa threaded opening 70 at the end of the stud 59. An additional hole, oropening 71 about the same size as the hole 67, is located below thelatter and approximately centrally .of each frame member 64 and 65. Asmall pin 72 passes through each opening 71 and is secured in the backof each holddown jaw 61 and 62. A coil spring 73 is hooked over each pinin an annular groove 74; and each spring 73 is similarly hookedunderneath a bar 75 that passes below the bed 35 so that each hold-downjaw 61 and 62 normally is pulled downwardly around its pivot point 63 sothat its serrated bottom edge 76 is brought into contactingrelation'with the upper coated surface of the tape 30. Also secured toeach hold-down jaw 61 and 62, on the inside face thereof, is a cammingpin 77 (Fig. l), or cam follower.

Referring now once'again to the jaw 37 it will be seen that there isprovided on each side thereof an elongated cam 78 which, duringactuation of the jaw 37, travels around each camming pin 77 incontacting relation therewith to bring each hold-down jaw 61 and 62intermittently into operative and inoperative position with respecttothe tape 30, as will more fully be explained hereinafter.

Fixedly mounted on the inside of each side frame 64 and 65, between thejaw 37 and each hold-down jaw 61 and 62, are two (right and left) tapewiper or separator members 79 and 80 respectively. The forward bottomedges of each of these members are scalloped as indicated at 81 so thatthe tape 30, which is inclined to adhere to the hold-down jaws 61 and62, may be freed therefrom when the latter move upwardly in response tothe camming action of the cam 78 on the tape advancing jaw 37. Thesemembers are held in position with respect to the side frames 64 and 65by means of pins 82 passing through openings 83 at opposite ends thereofand into openings 84 in the side frames.

'Severing means adapted to shear a pre-determined end portion of thetape are located forwardly of the machine adjacent the forward end ofthe bed 35. Such means may comprise relatively movable shearing bladesindicated generally at 85 and 86 respectively, the blades beingcooperatively associated with the tape advancing means, whereby the tapeis sheared immediately upon completion of the advancing movement of thetape to its pre-det ermined position by the tape actuating means.Preferably, the shearing means 85 is fixed and may be a part of the bed35. However, there is provided a shearing knife 87 fixed in position ashort distance below the plane of the advancing finger 32. The blade 87is secured in position by suitable screws 88. It will be observed thatthe cutting edge of the blade 87, is so arranged that it tapers inwardlyand downwardly toward its center as indicated at 89. This will enablethe tape to be sheared transversely inwardly from opposite marginaledges simultaneously until it is completely severed at its center line,

A vertical reciprocating shearing blade or box 90 is provided activelyto bring about the shearing action.

This member is mounted against the forward face of a Slide bar 91mounted between the forward end of the frames 64 and 65 by means ofsuitable screws passing through openings 92 in the latter and intothreaded openings 93 in the member 91. The rectangularly shaped boxblade 90 has its cutting edge at the bottom of its rear face asindicated at 94, the cutting edge being in vertical alignment with theinwardly tapered cutting edge 89 of the fixed blade 87. This movablecutting member is secured in position against the face 95 of the member91 by means of a screw 96 passing through an elongated washer 97disposed against the back wall thereof. This screw also passes throughan elongated slot 98 and into a threaded opening 99 in the member 91. Itwill be observed that the top of the member 91 is slotted as indicatedat 100 and that above the opening 98 in the movable blade 90 is anotherelongated aperture 101 in alignment with slot 100. The forward end ofthe yoke 47 is arranged to pass through the slot 100 and into the slot101 in order to actuate the reciprocable knife member, or box blade 90.

The punching and compression means is disposed in advance of theshearing members 85 and 86. This means is adapted to receive a sheet ofpaper in overlying relation with respect to the pre-determined advancingend portion of the tape to be severed and is so arranged that it willpunch holes through the sheet and end portion of the tape, andsimultaneously therewith to compress the cut tape and paper intoadhesively secured relation. This means comprises a fixed block 102,preferably integral with the bed 35, mounted above springs 103encircling studs or guide members 104 located in the base 22, whichmembers 104 penetrate the block 102 by passing through vertical holesprovided therefor.

Secured to the front of the block 102, by means of suitable screws 105,is an angularly bent blade 106 which extends rearwardly of the top ofthe block 102 and in spaced relation therefrom, to terminate adjacentthe fixed shearing member 87. Secured to the top of the angular blade106 by means of rivets 107 is another blade 108 having upwardly struck,oppositely disposed, fingers 109. A paper and tape punch 110, is fixedlysecured within the block 102 and is adapted to penetrate a hole 111 inthe members 106 and 108 in order to effect the punching action bysubstantially vertical downward depression of these members in responseto the downward movement of the rectangularly shaped box blade 86 which,in addition to being provided with a tape cutting edge constitutes aportion of the compression means, namely, the compression plunger,actuated by the extension 47 of the yoke 42 in response to rotation ofthe actuating handle 58.

The entire mechanism above described, with the exception of theactuating handle 58 is enclosed in the split main housing 25 secured tothe base 22 by means of suitable screws 112. The bed 35 is held in itsillustrated position by means of similar screws 113 passing through thehousing and into the forward portion of the block 102 and the rear ofthe bed 36 respecitvely. The forward end of the housing has an openingindicated generally at 114 (Fig, 2) so that a sheet of paper 115,indicated in dotted lines (Fig. 7) may be inserted therebetween.

In operation, the freely floating roll of tape 26 which has previouslybeen threaded through the machine to the edge of the knife 89, is now inposition to be advanced. A sheet of paper 115 is inserted in the opening114 where it is held in raised position by the fingers 109. The handle58 is grasped and rotated whereupon the serrated teeth on the jaw 37grip the tape 30 between the jaw 3'7 and the extension finger 32underneath the tape, As the handle continues its rotation the entirecarriage whichincludes the finger 32 and finger plate 27 advances thetape a pre-determined distance underneath the sheet of paper 115 asillustrated in Figs. 6 and 7. It will be observed that the cams 78 passunderneath the camming pins '77 and in front thereof. Continued rotationof the handle, in the meantime, brings the eccentrics into play and theextension 47 of the yoke 42 depresses the vertically reciprocableshearing element 86. This last named member which is also the plunger,passes downwardly between the struck-up fingers 109, compressing thepaper sheet therebetween and into initial contacting relation with thetape. At this moment the simultaneous action of severing the tape,punching the same and the paper, and compressing the paper and tape intofixed adhesive relation, occurs. The blades 106 and 108 are pusheddownwardly together against the spring loaded pins 104 (Fig. 8). Thebottom of the member 86 has an opening therein commensurate with thesize of the opening 111 for the plunger 110. The plunger penetrates bothtape and paper while the knife edge 94 shears the tape along the fixededge 89 and the plunger passes upwardly through the bottom of the member86 to punch out a circular piece of tape and paper. The paper and tapehaving been brought into compressed relation remains adhesively affixedtogether as seen in Fig, 12. As thehandle 58 is rotated back to itsstarting position, the hold-down jaws 61 and 62 are brought intocompressed relation with the top of the tape, holding the same to thetop of the bed 30- by virtue of the fact that the camming elements 78ride over the tops of the pins 77,

thereby holding the tape in position for being advanced.

a second time a pre-determined distance. In repeating the operation thehold-down members must release the tape for further advance movement andthe operation is repeated as above described, the cams 78 passingunderneath the pins 77 thereby raising the hold-down jaws 61 and 62.Should there be a tendency for the tape to adhere to the hold-down jaws,the tape will be brought into contact with the scalloped edges 81 of thewiper or separator members 79 and so that the forward end of the tapewill fall downwardly in position against the bed 30 so that it properlycan be advanced again to be severed.

It should be understood that it is within the contemplation of theinvention to operate the machine by mechanical or electrical means orother than the manual means herein described for illustrative purposes.It should also be understood that, while a single severing, compressingand punching mechanism has been disclosed, it is intended that one or aplurality of similar means can readily be connected to operate incombination in a tandem arrangement.

It will thus be seen that the objects hereinbefore set forth may readilyand efficiently be attained and since certain changes may be made in theabove construction and different embodiments of the invention could bemade without departing from the scope thereof, it is intended that allmatter contained in the above description or shown in the accompanyingdrawings shall be interpreted as illustrative and not in a limitingsense.

It is also to be understood that the following claims are intended tocover all of the generic and specific features of the invention hereindescribed, and all state ments of the scope of the invention which, as amatter of language, might be said to fall therebetween.

Having described our invention what we claim as new and desire to secureby Letters Patent is:

1. In a machine of the character described, comprisin means mounting arolled web of adhesive tape; means to advance said tape a predetermineddistance with respect to a severing means; said tape advancing meanscomprising a movable jaw adapted to grip said tape therebetween tounwind the same from said roll and advance the pre-determined portion tobe severed, a tape holddown jaw adapted to hold said advanced tape inposition during severance and until said movable jaw returns to initialtape gripping position, and a tape wiper member adapted to remove saidtape from said hold-down jaw when the same adheres thereto; severingmeans adapted to sever a predetermined end portion of said tape;punching and compression means adapted to receive a sheet of paper andthe predetermined end portion of said tape in overlying relation, and topunch holes through said sheet and end portion of said tape, and tocompress the same into adhesively fixed relation; and means adapted toactuate said tape advancing means. and said severing, punching andcompression means, in order substantially simultaneously to sever saidtape portion, punch the same, together with said paper, and adhesivelyto secure them to each other.

2. In a machine as defined in claim 1, and further char acterized inthat said means for mounting the rolled web of adhesive tape, comprisesa well, and a housing therefore, adapted loosely to receive and to holdsaid roll in rotatable but freely suspended position to be 11n wound;and guide means to maintain the roll in freely suspended position in thewell by the unwound portion, but with the unwound portion of the web tobe severed guidingly positioned in threaded alignment in the machine.

3. In a device according to claim 2, and wherein said guide meansincludes a curved finger plate overlying said roll and a fiatreciprocating finger plate, having upstanding side walls, through whichsaid unwound web portion guidingly is positioned in threaded alignmentwith said machine.

4. In a machine as defined in claim 1, and further characterized in thatthe jaw of said tape advancing means is provided with a plurality ofaligned serrations along its lower edge to grip said tape to unwind thesame from said roll and advance the predetermined portion to be severed.

5. In a machine as defined in claim 1, and funther characterized in thatthe jaw of said tape advancing means is provided with a plurality ofserrations along its lower edge to grip said tape to unwind the samefrom said roll and advance the predetermined portion to be severed; anda tape hold-down jaw on each side of said tape advancing jawcooperatively associated therewith to hold said advanced tape inposition during severance and until said movable jaw returns to initialtape gripping position.

6. In a machine as defined in claim 1, and further characterized in thatthe jaw of said tape advancing means is provided with a reciprocablecarriage, and said jaw being pivotally mounted therein to reciprocatewith said carriage, whereby to grip said tape therebetween to unwind thesame from said roll and to advance the predetermined portion to besevered; and means to actuate said carriage.

7. In a machine as defined in claim 1, and further characterized in thatsaid tape advancing means comprises a reciprocable carriage, with saidjaw mounted therein to reciprocate with said carriage, whereby to gripsaid tape therebetween to unwind the same from said roll and to advancethe predetermined portion to be severed; and means to actuate saidcarriage; a hold-down jaw pivotally mounted at one end adjacent saidmovable jaw; and means, including a cam on said movable jaw and a camfollower on said hold-down jaw cooperatively connecting and associatingsaid jaws, whereby said holddown jaw becomes inoperative as said tape isadvanced by said movable jaw, and operative as said movable jaw isretracted by said carriage actuating means.

8. In a device according to claim 7, and wherein said hold-down jaw ismounted to oscillate on a fixed side frame; and a tape separator memberfixedly mounted on said frame, adjacent said hold-down jaw, to separatesaid tape when the same adheres thereto.

9. In a machine as defined in claim 1, and further characterized in thatsaid severing means comprises relatively movable shearing blades, a yokeconnecting said blades, cooperatively with said tape advancing means,whereby said tape is sheared immediately upon completion of the advancemovement of said tape to its predetermined position by said actuatingmeans.

10. In amachine as defined in claim 1, and further characterized in thatsaid severing means comprises a fixed shearing bar and a reciprocatingshearing box having a cutting edge, means connecting said box and saidtape advancing means and adapted to reciprocate said box upon operationof said actuating means.

11. In a device according to claim 10, and wherein said shearing bar issubstantially horizontally disposed and provided with tapering cuttingedges converging to ward the center thereof, thereby to shear said tapetrans versely and progressively inwardly from opposite sides towards andthrough the center thereof.

12. In a machine as defined in claim 1, and further characterized inthat said severing means comprises a horizontally disposed shearing barhaving downwardly and inwardly tapering cutting edges, a verticallydisposed guideway, and a reciprocable shearing member, having ahorizontally disposed cutting edge, slidably mounted in face-to-faceagainst said guide-way, and adapted to shear said tape transversely andprogressively from opposite side edges inwardly and through the centerthereof.

13. In a machine as deined in claim 1, and further characterized in thatsaid punching and compression means comprises a relatively movablespringdoaded base member and punch adjacent said shearing means, saidpunch being substantially normal to the approximate center line oftravel of said tape, and said base being adapted to receive a sheet ofpaper and said predetermined portion of tape in overlying relation, andcompression means adapted relatively to actuate said base and punch toperforate said tape and paper adhesively to compress the same together.

14. In a machine as defined in claim 1, and further characterized inthat said punching and compression means comprises a floatingspring-loaded base having an aperture therein, a fixed punching memberadapted to penetrate said base, and a reciprocable compression memberalso having an aperture therein that is in alignment with the aperturein said base and likewise adapted to be penetrated by said fixedpunching member.

15. In a device according to claim 14, and wherein said base is mountedto float on compression springs, said base having resilient spacingfingers overlying said base in spaced-apart relation and adapted to holda sheet of paper to be punched in upraised position from said punchingmember to receive a pre-determined portion of said tape to be severedbetween the underside of said sheet and said punching member so thatsaid sheet and tape simultaneously can be punched and adhesively securedtogether by said compression member.

References Cited in the file of this patent UNITED STATES PATENTS1,826,557 Lowe Oct. 6, 1931 1,879,233 Henry Sept. 27, 1932 2,293,246 FayAug. 18, 1942 2,353,232 Greene July 11, 1944 2,437,022 Fritzinger Mar.2, 1948 2,441,821 Kendall May 18, 1948 2,512,822 Bars'n June 27, 19502,541,444 Storey Feb. 13, 1951 2,557,831 Lucenti June 19, 1951 FOREIGNPATENTS 435,051 Great Britain Sept. 13, 1935

